Tivadar Kardos was a specialist of helpmates and twomovers, especially miniatures. He was an International Judge.
Together with István Rágó, from 1969 to 1976 he published the paper "Feladványkedvelők Lapja" (Paper of the Friends of Chess Problems)
He wrote with Gabriel Authier "125 problèmes, et quelques autres du dernier demi-siecle: sélectionnés dans le genre blocus à mat ajoutés et changés" in 1956 and "275 problèmes d'échecs du genre mutate: en deux coups" also in collaboration with G. Authier and Roger Diot.
In 1983 Walter Fentze published the compilation "Tivadar Kardos: 200 ausgewählte Schachprobleme".

Stephan Eisert is a direct movers and endgame studies composer. He often works with Dieter Kutzborski and is specialized in the strategic multimover.
In die Schwalbe 203, 2003 he wrote the article "100 Jahre das Indische Probleme" together with Hans Peter Rehm: the article can be read here.

David Gurgenidze is a chess player, organizer, author and studies composer. He has written numerous books about chess studies and endgames.
He prefers composing Rook endgames and has often successfully developed ideas of composers from the past (such as the study quoted on Wikipedia.de inspired by N.D. Grigoriev).
He is also an International Judge for studies and was the World Champion of the WCCI 1998-2000 for studies.